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| navigational triangle; parallactic triangle; polar-zenith-star triangle | |||
| astronomical triangle; celestial triangle; spherical triangle | |||
| астрономический треугольник: 1 短语, 1 学科 |
| 导航 | 1 |
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| navigational triangle; parallactic triangle; polar-zenith-star triangle | |||
| astronomical triangle; celestial triangle; spherical triangle | |||
| астрономический треугольник: 1 短语, 1 学科 |
| 导航 | 1 |